Fuse-block and lightning-arrester



(No Model.)

H. AfCHAsB.

FUSE BLOCK AND LIGHTNING ARRESTBR. No. 432,980.

Patented July 29, 1890.

UNITED STATES PATENT OFFICE.

HENRY A. CHASE, OF BOSTON, MASSACHUSETTS.

FUSE-BLOCK AND LIGHTNING-ARRESTER.

j SPECIFICATION forming part of Letters Patent No. 432,980, dated July 29, 1890 Application filed March 31, 1890.

To all whom it may concern:

Be it known that l, HENRY A. CHASE, of Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in ElectricOut-Outs, of which the following description, in connection with the accompanying drawings, is a specification, like letters and tigures on the drawings representing like parts. In another application, Serial No. 345,567, filed by me March 27, 1890, I have shown an electric cut-out having fuse-wires, they being attached to suitable supports, and separating or bridge walls arranged between the said supports.

This invention has for its obj ect to provide more suitable means for holding the fusewires in place on their supports, and also for providing the cut-out with a lightning-arrester of suitable construction to take care of any static charge.

In accordance with this invention the fusewires are attached to the binding posts, although this is not essential; and to facilitate holding them in place I have attached the fuse-wires to suitable pins, which are dropped in sockets formed in the said posts, and setscrews or equivalents are provided for holding said pins in place. The lightning-arrester comprises two posts or supports having pointed arms which terminate adjacent to the fusewire supports, the said posts or supports being connected with a suitable post which may be connected with a ground terminal. Separating or bridge walls are arranged between the fuse-wire supports, and also between the supports and arms of the lightning-arrester.

Figure l shows in plan view an electric cutout embodying this invention; Fig. 2, a side view of the cut-out shown in Fig. l.

The base-plate ce, as herein shown, has arranged on it four posts or supports 2 3 4 5, they being adapted to carry the current at each side of the instrument to be protected. Each post o r support 2 3 4 5 has a transverse hole through it, which receives the leading-in and leading-out wires, and set-screws are provided for holding the line-wires in place. The posts or supports 2 3 et 5 have sockets in their upper ends which receive pins 6, to which the fuse-wires 7 are attached, and said pins 6 are held in their sockets respectively by set-screws Serial Noi 345,948. (No model.)

8. Vhcn a fuse-wire is ruptured, a new one having pins G on it may be quickly and easily placed in position and a good contact always insured. If but one line or one side of an instrument is desired to be protected, but two binding-posts, as 2 3, will be needed. Suitable posts or supports b bx are arranged on the base-plate ct, having holes through them which receive rods b', having pointed or tapering ends b2. These rods b are held in place by set-screws b?. The posts b 11X are electrically connected with a post c, which latter may be connected with a suitable ground terminal. Aseparating or bridge wall d, made of rubber or other insulating material, is arranged between the posts 2 5. A curved or semicircular separating or bridge wall of insulating material is arranged around each post 3 4f, the ends of the bridge-wall d around the post 3 terminating between the posts 2 8 and 3 l), respectively, and the ends of the bridge-wall cl2 terminating between the posts 5 4: and Ll bx, respectively. A separating or bridge wall e is located between the posts b bx. Thus it will be seen that all the posts are separated by bridge-walls 0f insulating material, so that no arc can pass from one post to another. These bridge-walls are made as high or higher than the tops of the posts, and the fuse-wires 7 preferably pass through small notches or slits cut in the bridge-walls d cl2, while the collecting-arms b2 of the lightning-arrester also passthrou gh the'said bridgewalls. This form of cut-out may be used, if desired, in connection with other cut-outs, and also the lightning-arrester (shown with its bridge-wall) may be used separately from the fuse-wire cut-out, and vice versa.

I claiml. The posts t) and collecting-rods h passing through and secured to said posts by setscrews, and terminating adjacent electric conductors, anda ground-wire, combined with separating-walls of insulating material for the said posts and rods, substantially as described.

2. In an electric cut-out, the posts 2 3 et 5 for the leading-in and leading-out wires, and fuse-wires held by said posts, combined with two posts b and collecting-rods held by them, which terminate adjacent to the posts 3 4, the ground-terminal post c, and bridge-Walls between the posts b 3 and also between the posts bK 4, substantially as described.

3. In an electric eut-out, the posts 2 3 and fuse-wire connecting them, and the semicir- 5 cular bridge-Wall inclosing post 3, combined with the posts 4 5 and fuse-Wire connecting them, and the selnieircular bridge-Wall inclosing post 4, substantially as described.

4. In an electric cut-out, the posts 2 3 4 5 1o for the leading-in and leading-out Wires, and fuse-Wires held by said posts, combined with two posts b and collecting-rods held by them,

which terminate adjacent to the posts 3 4 and the ground-terminal post c, and the selnicircular bridge-walls d d2 for posts 3 4, substantially as described.

In testimony whereof I have signed my name to this speeication in the presence of two subscribing Witnesses.

HENRY A. CHASE. Witnesses:

GEO. W. GREGORY, EMMA J. BENNETT. 

